The Aurora (or Northern & Southern Light) as observed from the sky. In this picture the two lights occurred at the same time.

Birkeland,in the beginning of the last century, has already given an explanation of the Aurora in terms of electromagnetic interactions with the Sun. His explanation has long been ignored until recently it has been confirmed by direct observation with modern sophisticated satellites: The Aurora is caused by an electromagnetic interaction with the Sun.

[Figure 13: Earth: aurora]

A beautiful picture of the Northern light.

[Figure 14: Northern light]

[Figure 15: Earth Magnetic field]

Here we seean artistic interpretation of the electric double layer shielding our Earth. The layer around our planet Earth is deformed by the emission of particles and energy of the Sun (solar wind). Of course this picture is not to scale. Please note that the Moon, which is circling around the Earth, will also penetrate the double layer of the Earth! Which indicates a direct electrical interaction between the Earth and the Moon, as well as with the Sun.